WDSU investigative reporter Travers Mackel said the indictment deals with an incident that was reported the morning New Orleans Officer Daryle Holloway was shot and killed while taking an inmate to the Orleans Parish Prison.

Mackel said Johnson responded to a report of an aggravated assault on June 20 at a home in the 2500 block of Peace Court. Travis Boys was accused of pointing a handgun at a 47-year-old woman and firing one shot.

During the investigation, officers recovered a .38-caliber weapon belonging to the woman and one .40-caliber casing. Boys was arrested and taken to the Fifth District station.

Later that morning, Holloway attempted to take Boys to Central Lockup for booking, but was shot from within the vehicle during transport. Boys is accused of shooting Holloway and fleeing the scene. Holloway crashed the vehicle at a nearby gas station and died.

Members of the Public Integrity Bureau have been investigating Holloway's death since he was killed. Johnson was charged and suspended for his role in investigating the incident at the St. Roch home and withholding evidence in the case.

Detectives said Johnson deliberately attempted to leave the .40-caliber casing at the scene of the assault rather than process it as evidence. Johnson is also accused of taking a box of .40-caliber bullets from the scene and not processing it as evidence.

Johnson told detectives that he didn’t remember where he left the box of bullets. Shortly after being interviewed, detectives saw Johnson remove a box of bullets from his vehicle and throw them out a window while driving, police said.

Johnson later admitted to throwing the box of bullets out his window. Johnson is a 12-year veteran of the department and was assigned to the Fifth District.